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Abstract
Today it is vitally primary to furnish a high-level security to protect highly sensitive and confidential knowledge. IDS is an essential technology in network security. Intrusion-detection systems has ability to detect attacks in computer system and against networks. This paper presented the history of Intrusion Detection Systems tools for detecting intrusions in Wireless LAN. Thirty-two research and commercial tools are evaluated based on some common parameters. An intrusion detection systems taxonomy is designed to compare the performance and features of IDS tools. This work identifies a number of important design and implementation issues, which provide a framework for evaluating or deploying commercial intrusion detection systems.